Coffee-making apparatus



Patented May 13, 1924.

UNITED STATES GEORGE 1?. PETROPULOS, OF CHICAGO, ILLINOIS.

COFFEE-MAKING APPARATUS.

Application filed December 6, 1923.

To aZZ whom it may concern:

Be it known that I, GEORGE P. Pn'rno- PULOS, a citizen of the UnitedStates, and a resident of Chicago, in the county of Cook and State ofIllinois, have invented a. new and useful Improvement in Coffee-MakingApparatus, of which the following is a full, clear, and exactdescription.

My invention relates to improvements in coffee making apparatus, and itconsists in the combinations, constructions, and arrangements hereindescribed and claimed.

An object of my invention is to provide an improvement over that form ofthe device shown in my patent of March 7, 1922, No. 1,408,963. In saidpatent, I disclosed a coffee making device in which means was providedfor siphoning the coffee liquid through the coffee grounds without thenecessity of draining off a portion of the liquid and then pouring thisliquid over the coffee grounds. The patented device showed the pipewhich conveyed the coffee liquid from the receptacle to the coffeegrounds as being disposed within the receptacle. In the present devicethis pipe is disposed exteriorly of the receptacle so as to permit thereceptacle to be more easily cleaned.

A further object of my invention is to provide a device of the typedescribed in which the siphoning pipe is hinged at a point adjacent tothe wall of the receptacle, whereby the pipe may be swung out ofposition when it is desired to clean the device.

A further object of my invention is to provide a device of the typedescribed in which the pipes that convey the hot water from the boilerto the coffee making devices are disposed below the top of the boiler,whereby the device is able to occupy a much smaller space than does thepatented device.

Other objects and advantages will appear in the following specification,and the novel features of the invention will be particularly pointed outin the appended claims.

My invention is illustrated in the accompanying drawings forming part ofthis application, in which- Figure 1 is a front elevation of the device, and

Figure 2 is a vertical section through the device.

In carrying out my invention I provide a boiler 1 and two coffee makingdevices 2. The coffee making devices 2 are similar in construction, anda description of one will Serial No. 679,018.

therefore suffice for both. A pipe 5 which conveys the steam from theboiler l to the coffee grounds 4 extends from the boiler 1 at a pointadjacent to the bottom of the boiler instead of extending through thetop of the boiler as shown in the patented device. It will thereforeappear from this construction that the device may be placed in a smallerspace than could the patented device, since in the present device, thepipes 5 do not project above the top of the boiler 1.

It will be noted from Figure 2 that the small L-shaped pipe 6communicates with the pipe 5 and directs the steam from the pipe 5 to apipe 7 that in turn communicates with the nozzle 8. This small pipe 6prevents the steam from passing through the pipe 9 that is connectedwith the pipe 5. W hen the valve 10 is opened, the steam from theboiler 1. will flow through the pipe 5 the pipe 6, and out through thenozzle 8, the steam entraining the coffee liquid that flows from thecoffee receptacle 11. In this manner, the coffee liquid is drawn fromthe receptacle 11 and flows through the pipe 9, the pipe 7, and outthrough the nozzle 8. The coffee after passing through the nozzle 8,flows through the coffee grounds 4 and back into the receptacle 11. Thisoperation continues as long as the valve 10 is open. In this way, thecoffee in the receptacle 11 may be made stronger without the necessityof draining the coffee through the faucet 12 and pouring this coffeeback into the receptacle through the cover 13.

In making the coffee, the bag 14 containing the coffee grounds is placedin the top of the receptacle 11. The valve 15 of a pipe 16 is nowopened, and permits hot water from the boiler 1 to pass into thereceptacle 11. It will further be noted that I have pro vided a by-pass17 and a valve 18, the bypass connecting the pipe .16 with a waterjacket 19. The water in the water jacket 19 aids in keeping the coffeeliquid in the receptacle 11 warm.

From the foregoing description of the various parts of the device, theoperation thereof may be readily understood. As heretofore stated, thecoffee bag 14 is placed in the top of the receptacle 11 when it isdesired to make coffee. The hot water from the boiler 1 is drawn throughthe pipe 16 when the valve 15 is opened. The water jacket 19 is alsofilled with water from the boiler 1. If now, the operator desires tolies in spraying nozzle 28 that is similar to e nozzle 8. Both of thenozzles 8 and 28 are adapted to spray the liquid passing ierethroiighover the entire bag 14: Wheremake the coffee in the receptacle stronger,he merely opens the valve l0. wherennon steam from the boiler l.

liquid in the receptacle l1. so t through the coiiee grounds t i the"iquid will pass through all of the {mice grounds. cl ini:

.i. coffee making device comprising a e coliee melting receptacle, 1!.pipe said boiler in communication with shown in Figure l, the collee oilthrough the faucet 12. the coffee making de ic s ith the boiler l. lgauge 20, and the coll'ce .L

being jirov'ded wit. qni mole, a second. pipe connnonimt receptacle iis. :vttonl of said receptacle, and T1 .irst named pipe at :1 pointexterior ii. cit seid receptacle, and a, stub miiinicznf with s: firstnamed crior of seid receptacle and extending into said receptacle, saidstub pipe bepzvrwidocl with :1- pi wot joint zidjn'. ent in receptacleWall.

" coffee making device. a boiler, 51

pipe piecing; said oiler in. com- ;i ent in with said receptacle. asecond communicating with sa d first named at o point exterior of said.iere itacle i plmlo iitl i 'eont lo the top receptacle. mid a pipedisposed in and second .nzuned pipes and being to direct the steam fromsaid first (1 second nnn'ied pipe.

. zine; dour... cinn 'n'ising :i wine making: receptacle. a pipe saidboiler in communication with It will be not pipe 7 is provided with e tothe Well of the cesiu pivot joint permits the f to be si'vung into 1ipositio coffee beg 14 to be ltZlHOVUtl .on'i tacle ll. llurthermore.this coistr permits the coffee IDIIlZl cleaned when desired. .inglsin'iple in coins. distinct improvements over tl vice; i. e., the pipes5 extend adjacent to the bottom of the of projectin *ilioio the My w andthe pipe '1 disposed eirtes-io coffee making devices 9, s as receptacle.said pipe having its inlet coffee making devices to be osed :it the topof said boiler. a St 11nd The portion oi iitftlllfj said boiler incommunication when desired.

extends into the coffee mnlrii v .th sziie receptacle and having itsinlet disadepted to be swung out of the WE as i at the bottom of saidboiler. and stub i v hingedly secured to snid first and secpermit thecofiee bag l t to be? adjacent to the hingedly secured thereto [til 2?.lie pipe 96 013 6 named pipes at a, point Well of the receptacle.

P. PETROPTTLOS.

